18426440

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4561}}^1$

素因数の和:4673

約数の個数: 32

約数和(自身を含む): 41879160

約数和(自身を除く): 23452720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4561, 9122, 18244, 22805, 36488, 45610, 91220, 182440, 460661, 921322, 1842644, 2303305, 3685288, 4606610, 9213220, 18426440]

約数ペア:

[(1, 18426440), (2, 9213220), (4, 4606610), (5, 3685288), (8, 2303305), (10, 1842644), (20, 921322), (40, 460661), (101, 182440), (202, 91220), (404, 45610), (505, 36488), (808, 22805), (1010, 18244), (2020, 9122), (4040, 4561)]